1. but we haven't reached any conclusion yet.
2.He has gone to the library.
3. had been married
4.is popular with
5.a good way to
句型转换
1.why is still a question
2.when and where they (这个不确定）
3.若句子改成____ ____ important ____ _____ ____ ____ make full use of our time.
则填 what is for us is to
4.differ from
5.burst out tearing
个人见解